Happy Teacher's Day 2021: We all know that Teacher's Day is celebrated every year on 5th September. On this day all the students give gifts to their Guru. In many schools, students are made teachers on that day. Students and teachers celebrate this day with great pomp. There can be no better day than this to say thank you to your Guru. Often this question arises in the minds of people that why Teacher's Day is celebrated, why Teacher's Day is celebrated only on 5th September, you can read this article to know the answers to the questions related to this.